I used “Turing Test” as shorthand for the headline, to indicate that AIs now of capable of many human-like behaviors that few would have believed even a few years ago. The responses here seem to fall into a group saying that no machine can ever pass a Turing Test and another saying that passing a Turing Test is easy but doesn’t really measure anything.
It might be helpful to go back and look at Turing original paper from 1950, A. M. Turing (1950) Computing Machinery and Intelligence. Mind 49: 433-460.
He starts with “I propose to consider the question, ‘Can machines think?’” This was not a new or startling question. People were already talking about it, in ways startlingly similar to what I’m seeing here. Most of their responses to the question was “no.” Turing’s paper gave a stripped-down way of possibly finding a way to answer “yes,” the Imitation Game.
By modern standards, the examples are trivial for an LLM.
Q: Please write me a sonnet on the subject of the Forth Bridge.
A : Count me out on this one. I never could write poetry.
Q: Add 34957 to 70764.
A: (Pause about 30 seconds and then give as answer) 105621.
Q: Do you play chess?
A: Yes.
Q: I have K at my K1, and no other pieces. You have only K at K6 and R at R1. It is your move. What do you play?
A: (After a pause of 15 seconds) R-R8 mate.
Note that most humans would fail these questions, especially if they had to do so in their heads. No machine of that time could write a sonnet then, either, but they can and do today. I’ve never written a sonnet in my life, even though I’ve written millions of words.
A sonnet requires formal knowledge of composition. A “no” arguer would require more. Turing quotes Professor Jefferson’s Lister Oration for 1949,
“Not until a machine can write a sonnet or compose a concerto because of thoughts and emotions felt, and not by the chance fall of symbols, could we agree that machine equals brain-that is, not only write it but know that it had written it. No mechanism could feel (and not merely artificially signal, an easy contrivance) pleasure at its successes, grief when its valves fuse, be warmed by flattery, be made miserable by its mistakes, be charmed by sex, be angry or depressed when it cannot get what it wants.”
If fed into an AI (and the word valves replaced), it would not be to tell if that were written in 1949 or 2026. No human could either.
Turing admits that it would “idiotic” to insist that a machine could enjoy strawberries and cream, another contrary example, but basically says this is a distinction without a difference. Humans have a range, machines will have a range. If perfect overlap is required then the answer must be “no,” machines are not humans. But that doesn’t really address the question of “do machines think?” Machines do not need to be all-knowing, perfect, or even sound like humans to be capable of thinking.
I would add that no one would ask that of all humans. If machines must not merely precisely match humans but exceed them in every way to be capable of thinking there is no question to be argued. That precludes the possibility of a different way of thinking a priori. I don’t think Turing would accept that.
He also short-circuits an attitude much seen today, here and elsewhere.
“The consequences of machines thinking would be too dreadful. Let us hope and believe that they cannot do so.”
This argument is seldom expressed quite so openly as in the form above. But it affects most of us who think about it at all. We like to believe that Man is in some subtle way superior to the rest of creation. It is best if he can be shown to be necessarily superior, for then there is no danger of him losing his commanding position. The popularity of the theological argument is clearly connected with this feeling. It is likely to be quite strong in intellectual people, since they value the power of thinking more highly than others, and are more inclined to base their belief in the superiority of Man on this power.
I do not think that this argument is sufficiently substantial to require refutation. Consolation would be more appropriate: perhaps this should be sought in the transmigration of souls.
He ends by saying, “We can only see a short distance ahead, but we can see plenty there that needs to be done.”
We’ve done plenty. Machines are not humans, but it’s becoming increasingly ridiculous to acknowledge the possibility of intelligent aliens but not intelligent machines.